This article presents the results of the study of the mineralogical and petrographic characteristics, composition, and age of gabbroids and monzonitoids of the Burelomny Creek massif, which is located in the Central Sikhote-Alin and is spatially associated with the Tigriny rare-metal–granite intrusion and eponymous Sn–W deposit. It is shown that the gabbroids and monzonitoids of the massif correspond to the high-potassium rocks of the normal and moderately alkaline series and have low concentrations of titanium, high concentrations of phosphorus, and moderate concentrations of HFSE and REE elements. The geochemical characteristics of the rocks indicate that they were derived from mixed lithospheric and sublithospheric mantle protoliths in a setting of a transform continental margin. The age of the gabbroids determined by the Ar–Ar dating of the biotite monofraction is 101 ± 1.5 Ma, which coincides with the “peak” of basite and granitoid magmatism in Sikhote-Alin. The significant difference in age (more than 20 Ma) and geochemical specialization indicates that the Tigriny rare-metal granite massif and associated mineralization have no genetic relationship with the gabbroids and monzonitoids of the Burelomny Creek massif.

本文介绍了 Burelomny Creek 地块的矿物学和岩相特征、成分和年龄的研究结果，该地块位于 Sikhote-Alin 中部，与 Tigriny 稀有金属花岗岩空间相关侵入岩和同名的锡钨矿床。结果表明，该地块的辉长岩和二长岩对应于正常和中碱性系列的高钾岩石，钛含量低，磷含量高，HFSE和REE元素含量适中。岩石的地球化学特征表明它们源自于转换大陆边缘背景下的混合岩石圈和岩石圈下地幔原岩。通过黑云母单组分 Ar-Ar 测年确定的辉长岩年龄为 101 ± 1.5 Ma，这与 Sikhote-Alin 基岩和花岗岩岩浆作用的“峰值”一致。年龄（大于20Ma）和地球化学特异化的显着差异表明，Tigriny稀有金属花岗岩地块及相关矿化与Burelomny Creek地块的辉长岩和二长岩没有成因关系。